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Ideal Water Parameters for Goldfish Tank (Complete Guide)

Maintaining the ideal water parameters in a goldfish tank is very important to keep goldfish successfully in a tank.

In this blog post, I’m going to tell you 

  • what are the ideal water parameters for goldfish 
  • How to maintain the ideal water parameters in your goldfish tank

Here’s a table showing the ideal water parameters for goldfish

Water parametersValues
Temperature65°F to 72°F (18° C – 22° C)
pH7
GH50-120ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40
goldfish image with text "Ideal Water Parameters for Goldfish Tank (Complete Guide)"

Now the water parameters I’ve mentioned above are good for all types of goldfish.

That being said, fancy goldfish are more sensitive to water conditions than common goldfish. 

So if you’re keeping fancy goldfish in your tank, you’ll need to be extra careful with the water parameters.

I’ve mentioned the specific ideal water parameters for different types of goldfish below.

Ideal water parameters for Common goldfish

common goldfish
Water parametersValues
Temperature46° F – 86° F (8°C -30°C)
pH5.0-9.0
GH50-120ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

Ideal water parameters for Fantail goldfish

fantail goldfish
Water parametersValues
Temperature61°F to 77°F (16° C – 25° C)
pH6.0 to 8.0
GH90-340ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

Ideal water parameters for Comet goldfish

comet goldfish
Water parametersValues
Temperature60°-72°F (16°-22°C)
pH7.0-7.8
GH90-340ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

Ideal water parameters for Oranda goldfish

oranda goldfish
Water parametersValues
Temperature65°F to 72°F (18° C – 22° C)
pH5.0 to 8.0
GH70-360‬ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

Ideal water parameters for Ranchu goldfish 

ranchu goldfish 
Water parametersValues
Temperature65.0° to 72.0° F (18° to 22° C)
pH6.0-8.0
GH90-340ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

Ideal water parameters for Shubunkin goldfish

shubunkin goldfish
Water parametersValues
Temperature65°F to 72°F (18° C – 22° C)
pH6.0 to 8.0
GH90-340ppm
KH70-140ppm
Ammonia0
Nitrite0
Nitrate40

How to maintain the ideal water parameters in your goldfish tank?

goldfish image with text "How to maintain the ideal water parameters in your goldfish tank?"

Maintaining the ideal water parameters is very important for the proper growth and development of the goldfish in your tank. 

If the water parameters in your fish tank are not in the ideal range for a long time then this stresses the fish. 

If the fish is stressed for a long time then this can lead to disease and even the death of the fish. 

Besides, if the water parameters in your goldfish tank are drastically changing throughout the day then this also stresses the goldfish which can cause diseases to the fish, worst, it can also cause the death of the fish.

The water parameters in a smaller tank change pretty quickly compared to larger tanks. That’s why you should try to get a larger tank for your goldfish.

Now you know how important it is to maintain the ideal water parameters in your goldfish tank, now I’m going to tell you how to maintain the ideal water parameters in your goldfish tank. 

What is the ideal temperature for a goldfish tank?

goldfish image with text "What is the ideal temperature for a goldfish tank?"

Goldfish are considered cold water fish so they need water temperature on the cooler side. 

How to measure temperature in your goldfish tank?

You can easily measure and keep track of the temperature in your goldfish tank using an aquarium thermometer. 

You can install this digital aquarium water thermometer (link to Amazon) to continuously keep track of the water temperature in your fish tank.

How to increase the temperature in your goldfish tank?

If you noticed that the temperature in your goldfish tank is lower than the ideal range then the easiest way to increase the temperature in your fish tank is to install an aquarium water heater in your tank.

I Cobalt Aquatics Flat Neo-Therm Heater aquarium water heater. 

It is from a reputed brand. And it also has a built-in thermostat.

You can check out its reviews and price at Amazon here 

How to lower temperature in your goldfish tank?

There are different ways to lower the temperature in your goldfish tank

  1. Turn off the aquarium light

Aquarium light can heat up the water in your fish tank, especially if you’re using a fluorescent light.

So turning the aquarium light off. Or if you’re using a fluorescent light then replacing the fluorescent aquarium light with led light will reduce the temperature of the water in your fish tank.

  1. Partial water change

If you noticed that the temperature in your goldfish tank is too high then, to lower the temperature, you should do a partial water change. 

While adding the water in your fish tank make sure to add the water that has a slightly lower temperature than the water in your fish tank.

  1. Use aquarium water cooling fan

You can cool down the temperature in your aquarium water using an aquarium water cooling fan.

You may find the fan at your local fish store or you can buy them from Amazon here.

Instead of using the aquarium cooling fan, you can also use a table fan and place it near your fish tank.

Besides, these ways, there are a lot of other ways to lower the temperature in your fish tank. I’ve covered them all in this article.

What is the ideal pH for a goldfish tank?

goldfish image with text "What is the ideal pH for a goldfish tank?"

pH is a measurement of the number of hydrogen ions present in the water. 

  • If the water has 7 pH then it is considered neutral water. 
  • If the water has more than 7 pH then it is basic water. 
  • If the water has lower than 7 pH then it is acidic water.

For most types of goldfish, pH around 7-8 is ideal. So goldfish needs slightly basic to neutral water. 

How to measure pH in your goldfish tank?

You can measure the pH in your aquarium water using an aquarium water test kit like the API pH test kit (link to Amazon).

How to measure aquarium water pH using API pH test kit?

API pH test kit comes with two pH testing solutions.

  1. Regular pH testing solution
  2. Super high pH solution

How to test pH using API regular pH testing solution?

  • First of all, take 5 ml of your aquarium water in a test tube
  • Now add 3 drops of the solution in the test tube
  • Now invert the test tube a few times
  • The color of the water in the test tube will change.
  • Now test the color of the water in the test tube with the color shades chart given with the test kit

If you noticed that the color of the water in the test tube is dark blue then to know the exact pH of your aquarium water you’ll need to use the Super high pH solution.

How to use API Super high pH testing solution?

The way to measure the pH of your aquarium water using the Super high solution is the same as the regular pH solution.

  • First of all, take 5 ml of your aquarium water in a test tube
  • Now add 3 drops of the solution in the test tube
  • Now invert the test tube a few times
  • Now the color of the water in the test tube will change.
  • Now test the color of the water in the test tube with the color shades chart given with the test kit

How to raise pH in your goldfish tank?

If you noticed that the pH in your aquarium water is lower than the ideal range then there are a few ways to increase the pH in your aquarium water. 

  1. Improving the aeration in the fish tank raises the pH in your aquarium water. To increase the aeration in your fish tank you can add an air pump in the tank.
  2. Doing partial water change can help to raise the pH in your aquarium water 
  3. You can use crushed coral or limestone to raise the pH in your aquarium water. You can add crushed coral or limestone directly in your aquarium. Or you can add it in your filter. 

How to lower pH in your goldfish tank?

There are a couple of ways to lower the pH in your aquarium water

  1. You can add natural driftwood in your fish tank to lower the pH in the water. 
  2. You can add peat moss in your fish tank to lower the pH in your aquarium water. You can use a mesh media bag to hold the peat moss and then hang the bag inside your tank submerged in the water.

What is the ideal KH for a goldfish tank?

goldfish image with text "What is the ideal KH for a goldfish tank?"

KH stands for Carbonate Hardness. KH is basically a measure of carbonate and bicarbonate ions in the water. 

In the aquarium hobby, we care about water KH because it acts as a buffer for pH swings. And prevents pH swings. 

Sudden pH swings stress the goldfish that’s why we need some KH in our goldfish tank water to prevent sudden pH swings.

How much KH should a goldfish tank water contain?

For all types of goldfish, the ideal KH range is 70-140 PPM or 3.9  to 7.8 dKH. 

How to measure KH in your goldfish tank?

You can measure the KH in your goldfish tank water using an aquarium water KH test kit like the API KH test kit (link to Amazon). 

How to measure the KH in your Goldfish tank water using the API KH test kit?

  • First of all, take 5 ml of your aquarium water in a test tube.
  • Now add one drop at a time of the KH solution on the test tube and invert the test tube a few times after adding every drop.
  • At the point where the blue color of the test tube water turns into orange or dark yellow color, stop adding the solution.
  • Count how many drops you’ve added up until that point.
  • That’s how much dKH you have in your aquarium water!

For example, if you had added 5 drops when the blue test tube water turned orange then the water has 5 dKH.

How to increase KH in your goldfish tank?

As KH is important because it acts as a buffer for pH swings, if you noticed that your aquarium water has low KH (less than 4 dKH or 70 ppm) then in that case,  you’ll need to increase the KH.

There are a few easy ways to increase the KH in your aquarium water.

  1. You can add alkalinity buffers like Seachem Alkalinity buffer (link to Amazon) in your fish tank to increase the KH in your aquarium water. Changing the water chemistry can be fatal for the fish in your aquarium. So make sure to closely follow the instructions mentioned on the product.
  2. If your have a hard tap water and you want to increase just a little bit KH in your aquarium water then doing a parial water change of around 20-30% can increase the KH in your aquarium water.
  3. Also, you can add some live aquarium plants in your tank to increase a little bit KH in your aquarium. Live aquarium plants slow down the KH depletion in your aquarium by absorbing nitrates in your fish tank. 

What is the ideal GH for a goldfish tank?

goldfish image with text "What is the ideal GH for a goldfish tank?"

GH stands for general hardness. GH is basically a measure of calcium and magnesium ions in the water. 

It basically tells how hard or soft the aquarium water is. 

Why GH is important for a goldfish tank?

Goldfish need more GH than most of the other aquarium fish. The calcium and magnesium ions that GH basically measure are essential for the proper growth and development of goldfish. 

How to measure GH in your goldfish tank?

You can measure the GH in your aquarium water using an aquarium water GH test kit like the API GH test kit (link to Amazon).

How to measure GH in your aquarium water using API GH test kit?

  • First of all, take 5 ml of your aquarium water in a test tube.
  • Now add one drop at a time of the GH solution in the test tube. And invert the test tube a few times after adding each drop.
  • At the point where the green water in the test tube turns orange, stop adding the drops and count how many drops you have added up until that point. And that’s the GH of your aquarium water.

For example, if you had added 5 drops of the solution in the test tube when the green water in the test tube turned orange then your aquarium water has 5 GH.

How to increase GH in your goldfish tank?

There are a couple of ways to raise the GH in aquarium water.

  1. You can add limestone in your fish tank to raise the GH in your fish tank
  2. You can add crushed coral in your fish tank to increase the GH in your fish tank. You can mix crushed coral in the substrate of your fish tank. Or you can add crushed coral in your aquarium filter.

How to lower GH in your goldfish tank?

There are a few ways to lower GH in your aquarium water

  1. If you have soft water source then you can do water chnage uisng that water. This will lower the GH in your aquarium. Now depending on the water source it might take several water changes to lower the GH in your aquarium water.
  2. You can add water softener pillow (link to Amazon) in your filter to lower the GH in your aquarium water. 

What is the ideal ammonia levels for your goldfish tank?

goldfish image with text "What is the ideal ammonia levels for your goldfish tank?"

Ammonia is deadly for your goldfish that’s you should not have any ammonia in your fish tank!

How to check ammonia in a guppy tank?

You can easily check if you have any ammonia in your fish tank using an aquarium water test kit like API ammonia test kit (link to Amazon)

How to check ammonia levels in a Goldfish tank using API ammonia test kit?

Below is the step by step process of checking ammonia in a Goldfish tank using the API ammonia test kit

  • First of all, you will need to put 5 ml of your aquarium water into the provided test tube
  • API ammonia test kit comes with two solutions to check the ammonia levels
  • So, first you will need to add eight drops of the first solution into the test tube
  • Then you will need to add eight drops of the second ammonia solution into the test tube
  • Now put the cap on the test tube and shake the test tube rigorously
  • Now wait for 5 minutes
  • After five minutes you should notice that the color of the aquarium water in the test tube has changed
  • You will need to put the test tube against the color chart provided with the test kit to know exactly how much ammonia your Goldfish tank has.

How to get rid of ammonia in you are Goldfish tank?

Ammonia is deadly for Goldfish so if you noticed any ammonia in your Goldfish tank then you should try to get rid of it as soon as possible.

There are several ways to reduce and get rid of ammonia from your Goldfish tank.

  1. Partial water change

As soon as you noticed any ammonia level in your Goldfish tank you should immediately do a water change of around 30 to 50% of the water of the tank.

When you do a partial water change, you are basically diluting the ammonia levels in your fish tank.

Now this method doesn’t really get rid of all the ammonia in your fish tank but it does avoid the danger of losing your fish due to ammonia

  1. Improve the filtration in your fish tank

Ideally, you should get rid of all the ammonia in your fish tank and your fish tank should never contain any ammonia.

One of the best ways to get rid of ammonia from your fish tank is to improve the filtration in your fish tank.

There are a few things you can do to improve the filtration in your fish tank.

You can either upgrade your aquarium filter to a larger filter.

A larger filter will have more space for the beneficial bacteria where they can form their colonies. So upgrading to a larger filter will help to get rid of all the ammonia in your fish tank.

You can also add another filter with your existing filter in your fish tank to get rid of all the ammonia in your fish tank.

  1. Other ways to get rid of ammonia from your fish tank

If you have already upgraded your filter. Or if you have added another filter in your fish tank but still you notice ammonia levels in your fish tank then, in that case, you will need to dig a little deeper and find the root cause behind the ammonia levels in your fish tank.

There can be several reasons that can cause high ammonia levels in a fish tank.

  • Over stocking your fish tank can cause high ammonia levels in the fish tank
  • Not removing uneaten food from fish tank can cause aammonia spike
  • If you are not keeping up with the regular maintainance of our fish tank then this can cause ammonia spikes in your fish tank.
  • If you are not keeping up with the regular maintenance of your fish tank and not removing uneaten food from your fish time then this can also cause high ammonia levels in your fish tank.

I have already written a detailed article containing the causes of high ammonia levels in a fish tank. And shared several ways to get rid of ammonia from your fish tank.

You can check out the article here

What is the ideal nitrite levels for your goldfish tank?

goldfish image with text "What is the ideal nitrite levels for your goldfish tank?"

Just like ammonia, nitrite is also very harmful to the goldfish in your aquarium.

Nitrite reduces fish’s ability to take oxygen.

That’s why you don’t want any nitrate levels in your fish tank.

Now if you noticed that your fish tank has a high level of nitrite then this is a sign that earlier your fish tank had an ammonia spike.

This is because, first, the ammonia is converted into nitrite by the beneficial bacteria and then the nitrite is converted into nitrate. So basically you cannot have nitrite without ammonia.

How to check nitrite levels in your fish tank?

You can easily check the nitrate levels in your aquarium using an aquarium water test kit like API nitrite test kit (link to Amazon)

How to check nitrite levels using API nitrate test kit?
  • First of all, you will need to take 5 ml of your aquarium water in the provided test tube
  • The API nitrite test kit comes with two solutions
  • First, you will need to add five drops of the first solution into the test tube
  • Now put a cap on the test tube and inverted the test tube a few times
  • Now add five drops of the second solution into the test tube
  • Again put a cap on the test tube and, at this time, shake the test tube rigorously
  • Now you will need to wait for 5 minutes
  • After 5 minutes you will start to notice that the color of the water in the test tube has changed
  • Now you will need to hold the test tube against the provided color chart to know exactly how much nitrite your goldfish tank has.

How to get rid of nitrite from your goldfish tank?

There are a few ways to get rid of nitrite from your fish tank

  1. Do partial water change

As soon as you notice nitrite levels in your Goldfish tank you should immediately do a partial water change of about 30 to 50% of your aquarium water. This will dilute the nitrite levels in your fish tank.

  1. Add filter media from another tank

To get rid of nitrite permanently, one of the most effective ways is to add filter media from an established or an already cycled aquarium.

So, if you know a friend who already has an established tank then you can get filter media from his/her aquarium and put it in your own aquarium filter to cycle your fish tank instantly.

Once your fish tank is cycled then your fish tank will have the beneficial bacteria that will convert harmful nitrite into less harmful nitrate.

Anything else about nitrite

As I mentioned earlier, if you have nitrite levels in your fish tank then it is a sign that earlier your fish tank had ammonia levels in your goldfish tank.

So if you want to fix the issue of nitrite levels in your fish tank permanently then you will need to first cycle your fish tank.

There are several ways of cycling your fish tank. You can read about cycling a fish tank and all the ways of cycling your fish tank here.

What is the ideal nitrate level for your goldfish tank?

goldfish image with text "What is the ideal nitrate level for your goldfish tank?"

Compared to ammonia and nitrites nitrates are less harmful to your Goldfish.

Your Goldfish will be fine as far as the nitrate level in your fish tank is lower than 40 PPM.

How to check the nitrates level in your fish tank?

You can easily test the nitrates level in your fish tank using an API nitrate test kit (link to Amazon)

How to check the nitrates level in a fish tank using API nitrate test kit?

  • First of all, you will need to take 5 ml of your aquarium water in the provided test tube
  • API nitrate test kit comes with two solutions
  • So first, you will need to add 10 drops of the first solution into the test tube
  • Now put a cap on the test tube and invert the test tube a few times
  • Now you will need to put 10 drops of the second solution into the test tube
  • Now put the cap back on the test tube and shake the test tube rigorously for at least one minute
  • Now you will need to wait for about 5 minutes
  • After 5 minutes the color of the water in the test tube will be changed. So now you will need to hold the test tube against the color chart provided with the test kit to know exactly how much nitrates you have in your fish tank.

How to reduce nitrates in your Goldfish tank?

Your Goldfish can tolerate nitrate level up to 40 PPM.

So if you noticed the nitrate level in your fish tank is around 40 PPM or above 40 PPM then you will need to reduce the nitrates level to make the water safe for your Goldfish.

There are a couple of ways to reduce nitrate level in your fish tank.

  1. Partial water change

You can do a partial water change of about 30 to 50% of the aquarium water to reduce the nitrate level in your fish tank.

This is the most common way to reduce nitrate level in a fish tank.

You should do a partial water change on a weekly basis to keep the nitrate level low in your fish tank.

Exactly how much percentage of the water you will need to change while doing the partial water change will depend on the nitrate level that builds up in your fish tank throughout the week.

  1. Plant live aquarium plants in your fish tank

Nitrates are harmful to the fish in your aquarium but they are beneficial for live aquarium plants.

Live aquarium plants absorb nitrates from a fish tank and use it as a fertilizer to grow.

So, if you plant some live aquarium plants in your goldfish tank then they will absorb some nitrates from your fish tank.

Now one thing you should keep in mind is that planting some live aquarium plants in your goldfish tank cannot absorb all the nitrates in your Goldfish tank.

This is because Goldfish can grow pretty fast and they produce a lot of waste in the fish tank. And planting some live aquarium plants in a fish tank is not enough to get rid of all the nitrates from your fish tank.

You’ll need to heavily plant your goldfish tank and understock your tank to get rid of all the nitrates in your goldfish tank.

What is the ideal oxygen level for a goldfish tank?

goldfish image with text "What is the ideal oxygen level for a goldfish tank?"

Just like us, goldfish also need oxygen to survive in your fish tank. But goldfish need dissolved oxygen to survive in the fish tank.

That’s why you should always make sure that your fish tank contains the optimum level of oxygen.

Measuring oxygen levels in your fish tank can be very expensive because the equipment that you will need to measure the oxygen levels in your fish tank is very expensive.

And honestly, you don’t really need them.

You can add a cheap air pump in your Goldfish tank to keep your Goldfish tank well oxygenated.

There could be several reasons that can lead to low oxygen levels in a fish tank. In this article, I have shared several ways to keep your fish tank well oxygenated.

FAQ

goldfish image with text "FAQ "

What should goldfish water parameters be?

Ideal water parameters for goldfish are as follows

  • Temperature- 65°F to 72°F (18° C – 22° C)
  • pH- 7
  • GH- 50-120 ppm
  • KH- 70-140 ppm
  • Ammonia- 0
  • Nitrite- 0
  • Nitrate- 40 ppm

What is the best TDS for goldfish?

Goldfish can tolerate a wide range of TDS. Depending on the species of goldfish, goldfish can tolerate TDS as low as 50 ppm to as high as 360 ppm. On average, a TDS around 120 ppm is suitable for all types of goldfish.

Are goldfish sensitive to water conditions?

Though goldfish are very hardy fish, still, you’ll need to maintain the water parameters in the ideal ranges for the proper growth and development of goldfish. Not maintaining the water parameters in the ideal range can lead to diseases in the fish. Worst, it can even cause the death of the fish.

Do goldfish need an air pump?

An air pump is used to increase the oxygen levels by agitating the water surface in a fish tank. If you already have a good water agitation on the surface of the water in your goldfish tank then your fish tank is already well oxygenated. In that case, you don’t need an air pump. But if there’s not sufficient water agitation then you’ll need to add an air pump to increase the water agitation.

Is Hard Water OK for goldfish?

Water is considered hard water when the general hardness (GH) of the water is above 120 ppm. 

Most varieties of goldfish can tolerate a wide range of water hardness. Goldfish can tolerate moderately hard (more than 90 ppm) to hard water (more than 120 ppm). 

Do Goldfish Fight Each Other? (and How to Stop Them?)

Can goldfish live in 75 Degree Fahrenheit water?

Only common goldfish can live in 75 Degrees Fahrenheit water temperature. For fancy varieties of goldfish, you’ll need to keep the temperature lower than 72 Degree Fahrenheit.

Do goldfish like flowing water?

Goldfish like slow-moving water. So you should not have a strong water current in your fish tank. If you noticed that any of your goldfish is struggling to swim steadily then this is because your fish tank has a strong water current. The strong water current can be caused due to an internal filter or canister filter outlet. It can also cause due to aquarium wavemakers. 

Are Goldfish Easy to Take Care of? (Answered)

What temperature should goldfish be in Celsius?

The ideal temperature range for all the goldfish is between 18° to 22° Celsius. Common goldfish can tolerate temperature water temperature as low as 7° Celsius to 30° Celsius. 

Do goldfish like low or high pH?

Goldfish can live in low or high pH water. The ideal pH range for all the varieties of goldfish is around 7 which is neutral. Though common goldfish can survive on pH as low as 5 to as high as 9.

Are Goldfish Social? (Surprising Answer)

Do goldfish need a heater?

To maintain a constant temperature in your goldfish tank you’ll need to have a heater in your fish tank. The ideal temperature range for all the varieties of goldfish is between 65°F to 72°F (18° C – 22° C)

Can goldfish live without a filter?

Goldfish cannot live without a filter. In fact, goldfish produce a lot of waste that’s why you’ll need more filtration in a goldfish tank compared to most of the other fish. Depending on the tank size and number of goldfish in the tank you’ll need a powerful canister filter or two large HOB filters. 

How do I test my goldfish water?

You can test your goldfish tank water using an aquarium water test kit like API Master Test Kit. 

With this test kit, you can test pH, GH, KH, Ammonia, Nitrite, Nitrate in your goldfish tank. It is a liquid-based test kit so it is very accurate.

What temperature is too cold for goldfish?

For most varieties of goldfish, a temperature below 65° Fahrenheit is too cold. That being said, common goldfish can tolerate water temperature as low as 46° Fereinherit.

What Can I Feed My Goldfish? (29 Fish Food Alternatives)

Are goldfish OK in hard water?

All the varieties of goldfish can tolerate water hardness up to 120 ppm. Fancy varieties of goldfish can tolerate water as hard as 340 ppm. 

How hard should water be for goldfish?

The ideal water hardness for all goldfish is around 120 ppm. However, fancy varieties of goldfish can tolerate water hardness as high as 340 ppm.

How long do fantail Goldfish live? (Can it really live 47 years)

Is rain water good for goldfish?

You can use rainwater in your goldfish aquarium. But make sure to collect the rainwater after about 30 minutes of rain. And collect the rainwater directly in a container that is not galvanized and is not used with any chemicals before. As rainwater is soft, you’ll need to add aquarium salt in the water to make it harder (GH of about 120 ppm). 

What pH does goldfish prefer?

The ideal pH for all varieties of goldfish is 7. Depending on the goldfish variety of goldfish can tolerate higher or lower pH. 

Do Goldfish sleep? (How do they sleep?)

Do goldfish need hard or soft water?

Goldfish need moderately hard to hard water. The deal water hardness for all varieties of goldfish is around 120 ppm. 

How long can goldfish live without changing water?

How long can goldfish live without changing the water in your fish tank depends on nitrate levels in your tank. Goldfish can tolerate nitrate levels up to 40 ppm. So generally, you’ll need to do water changes on a weekly basis to keep nitrate levels low in your goldfish tank.

Is 8.2 pH too high for goldfish?

8.2 pH is slightly high for fancy varieties of goldfish. Common goldfish can tolerate pH up to 9. If you’ve fancy goldfish then you can add natural driftwood or peat moss in your fish tank to lower the pH in your goldfish tank.

How Long Do Goldfish Live without Food? (Answer Might Surprise You)

Conclusion 

Maintaining the ideal water parameters in your goldfish tank is very important for the proper growth and development of your goldfish. 

Hopefully, this complete guide will help you to get the water parameters in your goldfish tank within the ideal range. And help you to maintain the water parameters within the ideal range. 

I hope you found all the information in this article helpful.

Please let me know if you have any questions about the ideal water parameters for goldfish in the comments. 

Also, feel free to add any information regarding the topic in the comments. 

Happy fishkeeping!

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